Low-frequency probe ADPF

An INDETEC ndt ADPF probe has been developed for the inspection of the complex multi-layered riveted structures. Especially,  it was developed for the inspection of  spar flange of Blanik L13 sailplane. The main advantage of the probe includes its high detection sensitivity to short-length cracks under the rivet heads in the third layer. Generally, probe is very effective for crack detection in multi-layered structures.


The minimal detectable crack size a90/95 is approximately 4 mm from the rivet shank edge with 90% probability at a 95% confidence interval in meeting all inspection parameters.


Aerospace Research and Test Establishment, Prague (VZLÚ, a.s.)

[1] BOHACOVA, Marie. Methodology of short fatigue crack detection by the eddy current method in a multi-layered metal aircraft structure. Engineering Failure Analysis [online]. 2013, vol. 35, s. 597-608 [cit. 2014-09-11]. DOI: 10.1016/j.engfailanal.2013.06.009.

Available from: http://www.sciencedirect.com/science/article/pii/S1350630713002094